How do I remove additional donations from the Event Attendees Report in ReportWriter?

When running the Event Attendees Report I see two rows of data when additional gifts are made at the time of the ticket purchase, one for the ticket purchase and one for the additional donation. How can I remove the additional donation form appearing on the report?

Article
Number:68320

Products:

Luminate_Online

On the Event Attendees Report, additional gifts will have no value in the Ticket Class Name column. Actual ticket purchases will reflect a variety of values from "Event Ticket", "Single Ticket", "Pair of Tickets" or other such values. To filter additional donations out of the report: